*{
	margin: 0px;
	padding: 0px;
}
.small{
	width: 400px;
	height: 400px;
	border: 1px solid #000;
	float: left;
	position: relative;
}
.small b{
	width: 100px;
	height: 100px;
	background: pink;
	opacity: 0.4;
	filter:alpha(opacity=40);
	position: absolute;
	left: 0px;
	top: 0px;
	display: none;
}
.big{
	width: 500px;
	height: 500px;
	overflow: hidden;
	position: relative;
	display: none;
	margin-left: 400px;
	margin-top: -400px;
	position: fixed;
}
.big img{
	position: absolute;
	left: 0px;
	top: 0px;
}